this year's patriots' day celebrations were marred by an act of senseless violence that's caused all of us great shock and pain. it is made us relive the horror of september the 11th. and it's a stark reminder of the darkness that can lurk in the human heart and produce such evil. and yet, the same tragedy has brought us together as a community like nothing else ever could. the generous and courageous response of so many assures us that there residetracks in people's hearts a goodness that is incredibly selfless. we saw that when summoned by great events we can be remarkably committed to the well-being of others, even total strangers. we become a stronger people, a more courageous people, a more noble people, the police, emergency workers and even bystanders and passerbies, did not hesitate to put themselves in harm's way to help the injured and the frightened. our presence here today is an act of solidarity, first of all with those who lost their lives. and we're so happy that crystal campbell's family is here in the cathedral with us. we also in solidarity with those injured in the